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synthetic oil in GT's

oil lubrication

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#1 WA7PUG OFFLINE  

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Posted February 19, 2016 - 08:33 PM

Does anyone know if there is any reason I cannot use a synthetic oil in a JD318? Seems like it might be good for the tractor ....

Thanks! doug


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#2 Tecumseh power OFFLINE  

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Posted February 19, 2016 - 08:48 PM

You can use it.
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#3 Eric OFFLINE  

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Posted February 19, 2016 - 09:05 PM

I seem to remember another post or two about this same issue, maybe someone can point you to that. If you are changing from standard to synthetic you will want to flush the original oil out pretty well. Changing oil can sometimes cause your seals to leak. Good luck.
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#4 Tecumseh power OFFLINE  

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Posted February 20, 2016 - 12:04 AM

If it is an older model it can be best to use synthetic diesel oil. It contains more zinc that really isn't in new gas oil because of the catalytic converters in newer automobiles.
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#5 karel OFFLINE  

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Posted February 20, 2016 - 02:23 AM

I use synthetic oil in all my machines. And for many years. I like it. it gives more power due to less friction.


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#6 JDBrian OFFLINE  

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Posted February 20, 2016 - 08:34 AM

Amsoil makes a synthetic replacement for SAE30. It's spec'd to replace 30 or 10W30. 


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#7 WA7PUG OFFLINE  

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Posted February 25, 2016 - 12:27 AM

Guys, thank you for your input ... my 318 is still my workhorse as a tractor - don't even have a mower deck for it because I use it for everything else (have a D104 to mow with), so I really appreciate your help.

Thank you! dj



#8 MolonLabe OFFLINE  

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Posted February 25, 2016 - 08:19 AM

I've used synthetic oil in all of my vehicles, GT's, generators, snowblowers....etc for as long as I can remember. I also add a couple of ounces of Lucas Oil Break In Additive to boost the zinc content. It either works great or I've been incredibly lucky.


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